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tensa zangetsu [6.8K]
3 years ago
5

On a coordinate plane, a line goes through (negative 3, negative 3) and (negative 1, 5). What is the equation of the line parall

el to the given line with an x-intercept of 4? y = - x +
Geography
2 answers:
DENIUS [597]3 years ago
6 0

Answer:

y=4x-16

Explanation:

The general form of the equation of a line is: y=mx+x, where m is the gradient and c is the y-intercept.

Given points  (-3,-3) and (-1,5)

We are to find the equation of the line parallel to the given line with an x-intercept of 4.

First, we determine the value of the gradient of the line.

Gradient,

m=\frac{y_2-y_1}{x_2-x_1} \\=\frac{5-(-3)}{-1-(-3)} \\=\frac{5+3}{-1+3}\\=\frac{8}{2}\\m=4

Two lines are parallel if their gradients m_1 \: and \: m_2 are equal.

The gradient of the line parallel to the given line m_2=4

Since the x-intercept of the new line is 4, a point on the new line, (x_1,y_1)=(4,0)

Substituting (x_1,y_1)=(4,0) into the equation of a line: , y-y_1=m(x-x_1),we have:

y-0=4(x-4)\\$Therefore:\\y=4x-16

Therefore, the equation of the line is: y=4x-16



11111nata11111 [884]3 years ago
4 0

Answer:

y = 4x-16

Explanation:

The coordinate points are: (-3,-3)(-1,5)

to get the slope of the line, we use the formula

m= \frac{x_{2} - x_[1}{y_{2}-y_{1}}=\frac{2}{8}=4

since the two lines are parallel, it means that they have equal slopes.

hence, the slope of the second line = 4

Since the x intercept of the second line is 4, it means the point on the second line is (4, 0)

using the formula

y-y_{1}=m(x-x_{1})

y-0=4(x-4)

y=4x-16

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